DC MOSFET Switch Module 3V–24V Pulse Trigger Optocoupler
DC MOSFET Switch Module 3V–24V Pulse Trigger Optocoupler
DC MOSFET Optocoupler Switch Control Module — 3V to 24V
This compact pulse-triggered MOSFET switch module delivers reliable, fully isolated switching control for a wide range of DC-powered devices. Whether you're building an Arduino project, integrating with a PLC, or controlling motors, LED strips, solenoid valves, or micro-pumps, this board offers a clean and efficient solution with complete input-to-output isolation via an onboard optocoupler. Made in Mainland China.
Key Features
- Full Isolation: Input and output are completely isolated via optocoupler for safe, noise-free switching.
- Wide Input Voltage Range: Signal trigger voltage of 3V–24V (~5mA) — compatible with MCU I/O pins, PLC interfaces, and standard DC power supplies.
- High-Power Output Control: Output voltage range of 5V–36V; handles up to 5A continuous (add a heat sink for loads above 5A; absolute maximum: 20A).
- PWM Compatible: Supports PWM input for precise motor speed control and LED brightness dimming using the F5305S power MOSFET.
- Versatile Load Support: Drive motors, bulbs, LED lights, DC fans, micro-pumps, solenoid valves, and more.
- Broad Operating Temperature: Rated for –40°C to +80°C for use in demanding environments.
- Compact SMD Design: Dimensions of just 46mm × 25mm × 18mm — easy to integrate into any enclosure or project.
Specifications
| Input Signal Voltage | 3V – 24V DC |
| Input Signal Current | ~5mA |
| Output Controlled Voltage | 5V – 36V DC |
| Output Current | Up to 5A (20A max with heat sink) |
| MOSFET | F5305S Power Field Effect Transistor |
| Operating Temperature | -40°C to +80°C |
| Dimensions | 46mm × 25mm × 18mm |
| Package Type | SMD |
| Quantity | 1 Module |
| Country of Origin | Mainland China |
Compatible Applications
- Arduino, STM32, Raspberry Pi, and other microcontroller platforms
- PLC automation systems
- DC motor speed control via PWM
- LED dimming and lighting control
- Solenoid valve and relay replacement circuits
- Micro-pump and fan control
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Frequently Asked Questions
Q: What is the maximum current this MOSFET switch module can handle?
A: The module can handle up to 5A continuously without a heat sink. For loads between 5A and 20A, a heat sink must be attached to the F5305S MOSFET. The absolute maximum rated current is 20A — do not exceed this limit.
Q: Can I use this DC MOSFET switch module with an Arduino or similar microcontroller?
A: Yes. The input signal voltage range of 3V–24V makes this module fully compatible with Arduino, STM32, ESP32, and other 3.3V or 5V microcontroller I/O pins. The optocoupler ensures the control circuit is completely isolated from the load circuit, protecting your microcontroller from voltage spikes.
Q: Does this module support PWM signals for speed or brightness control?
A: Absolutely. The F5305S MOSFET on this board supports PWM (Pulse Width Modulation) input, allowing you to precisely control DC motor speed, LED strip brightness, pump flow rates, and more by varying the duty cycle of your PWM signal.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.